Preheat oven to 350° F.
Mix apples with sugar, lemon juice, and nutmeg to taste and arrange in a buttered 2-quart casserole about 2" deep, scattering small pieces of butter through the apples as you fill the dish.
Top with crumbs, cover, and bake 35-45 minutes until apples are tender; uncover and bake 10 minutes longer to brown crumbs lightly.
Cool about 5 minutes, then serve with cream.